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  • MPEC 2020-S144 : 2017 QQ35

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    M.P.E.C. 2020-S144                           Issued 2020 September 21, 15:02 UT
    
         The Minor Planet Electronic Circulars contain information on unusual
             minor planets and routine data on comets.  They are published
        on behalf of Division F of the International Astronomical Union by the
              Minor Planet Center, Smithsonian Astrophysical Observatory,
                              Cambridge, MA 02138, U.S.A.
    
                 Prepared using the Tamkin Foundation Computer Network
    
                                  MPC@CFA.HARVARD.EDU
                URL https://www.minorplanetcenter.net/    ISSN 1523-6714
    
                                    2017 QQ35                                
    
    
                               Revision to MPEC 2017-R18                            
    
    Additional Observations:
         K17Q35Q 2C2020 09 20.00614304 15 03.30 +59 45 04.6          21.0 GVES144Z84
         K17Q35Q 2C2020 09 20.01840204 15 07.61 +59 46 38.3          20.7 GVES144Z84
         K17Q35Q 2C2020 09 20.03066404 15 12.19 +59 48 11.2          21.0 GVES144Z84
         K17Q35Q 5C2020 09 21.17602 04 23 01.72 +62 11 46.9          21.1 GVES144J04
         K17Q35Q 5C2020 09 21.18360 04 23 05.03 +62 12 43.9          21.1 GVES144J04
    
    Observer details:
    J04 ESA Optical Ground Station, Tenerife.  Observer E. Kuusela.  Measurers E.
        Schwab, M. Micheli, D. Koschny, A. Knofel, M. Busch.  1.0-m f/4.4
        reflector + CCD.
    Z84 Calar Alto-Schmidt.  Observer E. Schwab.  Measurers E. Schwab, D. Koschny,
        M. Micheli, R. Jehn.  0.8-m f/3 Schmidt + CCD.
    
    First and last observations above in comparison with prediction:
    Residuals in seconds of arc (or two decimals in degrees), reference and Delta-T
    200920 Z84 0.14+ 0.04+    200921 J04 0.15+ 0.03+    MPO416629   +0.07 days
    
    Orbital elements:
    2017 QQ35                                                Earth MOID = 0.1539 AU
    Epoch 2020 May 31.0 TT = JDT 2459000.5                  Veres
    M  91.44576              (2000.0)            P               Q
    n   1.34759738     Peri.  173.46225     -0.94679315     -0.31101063
    a   0.8117630      Node   347.43430     +0.27536066     -0.64961398
    e   0.4550785      Incl.   22.36878     +0.16661102     -0.69373919
    P   0.73           H   21.9           G   0.15           U   4
    Residuals in seconds of arc
    170831 F51  0.1-  0.0     170902 T05  0.5-  0.9+    170914 T05  0.6+  0.6-
    170831 F51  0.3-  0.0     170902 T05  0.2-  0.6-    170914 F51  0.0   0.2+
    170831 F51  0.3-  0.0     170902 T05  1.1+  0.1+    170914 T05  0.0   0.0
    170831 F51  0.3-  0.0     170902 T05  1.2+  0.5-    170914 T05  0.5-  0.1-
    170901 H36  0.3-  0.8+    170902 Q62  0.3-  0.2-    170914 F51  0.1-  0.2+
    170901 H36  1.5-  1.3-    170902 Q62  0.2-  0.1+    170919 691  0.5+  0.2+
    170901 H36  0.2+  0.6+    170904 H21  0.9+  0.0     170919 691  0.2-  0.1+
    170901 291  0.1-  0.0     170904 H21  0.9+  0.4+    170919 691  0.1+  0.9+
    170901 291  0.1+  0.1+    170909 H21  0.2+  0.2+    170921 H21  0.1+  0.0
    170901 291  0.2-  0.1-    170909 H21  0.0   0.1-    170921 H21  0.4+  0.0
    170902 807  0.1+  0.7-    170909 H21  0.2+  0.3-    170921 H21  0.1-  0.1-
    170902 807  0.5+  0.5-    170910 H21  0.4+  0.3-    170925 807  0.2+  0.1+
    170902 807  0.9+  0.3-    170910 H21  0.2+  0.3-    170925 807  0.3+  0.3+
    170902 H01  0.2+  0.1-    170910 H21  0.1-  0.6-    170925 807  0.2-  0.3-
    170902 H01  0.1+  0.2-    170911 H21  0.6+  0.2-    200920 Z84  0.6+  0.5-
    170902 H01  0.4+  0.2-    170911 H21  0.1+  0.2-    200920 Z84  0.8-  0.3+
    170902 H01  0.1+  0.2-    170911 H21  0.1+  0.3-    200920 Z84  0.1-  0.4+
    170902 H21  0.0   0.0     170914 F51  0.1-  0.2+    200921 J04  0.3-  0.2+
    170902 H21  0.2-  0.3-    170914 T05  0.2+  0.1-    200921 J04  0.6+  0.6-
    170902 H21  0.1-  0.3+    170914 F51  0.0   0.2+
    
    Ephemeris:
    2017 QQ35                a,e,i = 0.81, 0.46, 22                  q = 0.4423
    Date    TT    R. A. (2000) Decl.     Delta      r    Elong.  Phase     V
    2020 08 22    03 03 00.2 +20 48 42   0.4334  1.1667    99.9    58.7    22.5
    ...
    2020 09 06    03 27 41.6 +36 01 09   0.3202  1.1306   104.3    59.8    21.8
    ...
    2020 09 14    03 47 58.6 +48 13 55   0.2711  1.1022   103.7    62.5    21.5
    ...
    2020 09 20    04 14 57.1 +59 44 14   0.2437  1.0766   100.7    66.4    21.3
    2020 09 21    04 21 42.2 +61 49 10   0.2402  1.0720   100.0    67.3    21.3
    2020 09 22    04 29 33.6 +63 55 54   0.2370  1.0672    99.1    68.2    21.3
    ...
    2020 09 28    06 08 28.9 +76 12 55   0.2252  1.0367    92.5    74.9    21.4
    ...
    2020 10 06    12 14 45.2 +75 45 30   0.2303  0.9902    81.0    85.7    21.7
    ...
    2020 10 21    14 20 06.4 +48 27 05   0.2923  0.8848    59.7   103.7    22.8
    
    A. U. Tomatic                (C) Copyright 2020 MPC           M.P.E.C. 2020-S144
    


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